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Assessment of post-flooding conditions of rice fields with multi-temporal satellite SAR data

2003; Taylor & Francis; Volume: 24; Issue: 17 Linguagem: Inglês

10.1080/0143116021000021206

1366-5901

K. S. Lee, Subin Lee,

Ocean Waves and Remote Sensing

The temporal characteristics of radar response from rice fields were analysed throughout the 1999 summer flooding season in the agricultural area of the central Korean Peninsula. Multiple scenes of Radarsat SAR images were acquired before, during, and after the flood inundation. From the interpretation of colour composite imagery of the multi-temporal SAR data, as well as from the temporal profiles of radar backscatter, three types of rice fields were separable according to flooding and post-flooding recovery conditions. The actual flooding damage to the standing rice crop depends on the duration of the flood and on subsequent recovery status. We found that image data acquired during and after flooding is necessary to assess accurately flood damage to rice fields.